A river nigger is a Mexican as they use the river to cross over to the USA and jump fences or cross at openings in fences to gain access to the USA. A fence jumper, if you will.
by The Drunk Cook April 1, 2017
by Colby mattie January 4, 2008
An expression used in the card game "Texas Hold 'em Poker" for someone who was losing the hand to one or more players, and was saved by the 5th card, the river, due only to luck, and won the hand.
Bob: "All in"
Stew: "... I call"
Bob: "haha, I'm beating you with the odds of 4:1 in favour of me, you only have 3 cards you can hit out of the deck, with one card left, what a crappy call and a horrible read"
Stew: *hits the '3' he needed on the river card*
Bob: "OH MY GOD, HOW LUCKY CAN YOU GET? GO PLAY SLOT MACHINES YOU RIVER NIGGER!"
Stew: "... I call"
Bob: "haha, I'm beating you with the odds of 4:1 in favour of me, you only have 3 cards you can hit out of the deck, with one card left, what a crappy call and a horrible read"
Stew: *hits the '3' he needed on the river card*
Bob: "OH MY GOD, HOW LUCKY CAN YOU GET? GO PLAY SLOT MACHINES YOU RIVER NIGGER!"
by Cody Murray April 9, 2006
by Cahoon Clansman February 17, 2004